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Zinc metabolism in Escherichia coli: molecular analysis of zin a novel zinc inducible operon

ReferenceG05844
Principal Investigator / Supervisor Dr Andrew Morby
Co-Investigators /
Co-Supervisors
Institution Cardiff University
DepartmentSchool of Biosciences
Funding typeResearch
Value (£) 92,819
StatusCompleted
TypeResearch Grant
Start date 01/10/1996
End date 15/01/1999
Duration27 months

Abstract

This study will characterise a novel zinc responsive operon (zinA) situated on the E. coli chromosome. The response of zinA to Zn, and a range of other metal ions, will be studied using transcriptional reporter genes and by directly visualising protein/DNA complexes involving the operator/promoter region. The metal binding characteristics of ZinA N-terminal (150 amino acids) will be determined and its metal ion specificity modified using site-directed mutagenesis and techniques of forced evolution. zinA will be functionally inactivated by directed recombinational insertion of a resistance marker into the gene. zin strains of E. coli will be analysed phenotypically for Zn-tolerance, sensitivity and alterations in Zn-accumulation.

Summary

unavailable
Committee Closed Committee - Genes & Developmental Biology (GDB)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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